Threaded connection armored metal clad hose for gas
By designing a threaded connection structure on the armored metal-clad gas hose, the disassembly process of the sealing sleeve is simplified, solving the problem of difficult disassembly in the prior art, improving maintenance efficiency and safety, preventing gas leakage, and extending the service life of components.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU WANQUAN METAL HOSE
- Filing Date
- 2025-09-22
- Publication Date
- 2026-07-28
AI Technical Summary
Existing armored metal-coated gas hoses are difficult to disassemble and replace when the sealing sleeve is damaged. They require special tools and are prone to damaging the hose, affecting maintenance efficiency and safety.
A threaded connection structure was designed, including a threaded sleeve, a fixed arc plate, a positioning seat, and an abutment component. The sealing sleeve is fixed by bolts. Disassembly only requires rotating the threaded sleeve and bolts, which simplifies the operation process. The rollers reduce friction and extend the service life of the components.
It enables quick installation and removal of the sealing sleeve, improves maintenance efficiency, enhances the safety and stability of gas transmission, prevents gas leakage, and extends the service life of components.
Smart Images

Figure CN224566962U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of gas transmission hose technology, specifically a threaded connection armored metal-clad hose for gas transmission. Background Technology
[0002] Gas is a clean energy source widely used in both residential and industrial sectors. Its safe and stable transmission is crucial to ensuring the normal operation of production and daily life. As a core component connecting gas pipelines and terminal equipment, flexible hoses directly affect the reliability of the transmission system.
[0003] In the field of gas transmission, armored metal-coated hoses are widely used to ensure the safety and stability of gas transmission due to their excellent wear resistance, corrosion resistance, and high structural strength. However, existing armored metal-coated hoses for gas have defects in the connection structure design between the sealing sleeve and the hose body, which makes the disassembly and replacement of the sealing sleeve extremely inconvenient. Usually, the sealing sleeve and the hose body are fixed in a relatively complex way, lacking a convenient disassembly and assembly mechanism. When the sealing sleeve is damaged due to long-term use and needs to be disassembled and replaced, operators often need to use special tools and go through cumbersome operation steps to remove the sealing sleeve from the hose body. This not only consumes a lot of time and effort, but may also cause damage to the hose body or other components due to improper operation, affecting the overall service life of the hose and the safety of gas transmission. The difficulty in quickly and conveniently disassembling and replacing the sealing sleeve seriously restricts the maintenance efficiency of armored metal-coated hoses for gas, increases the cost and difficulty of gas supply maintenance, and fails to meet the needs of convenient hose maintenance in actual use. Utility Model Content
[0004] The purpose of this utility model is to provide a threaded connection armored metal-clad hose for gas applications, which solves the problem in the prior art where, when the sealing sleeve is damaged due to long-term use and needs to be disassembled and replaced, operators often need to use special tools and go through cumbersome operating procedures to remove the sealing sleeve from the hose body. This not only consumes a lot of time and effort, but may also cause damage to the hose body or other components due to improper operation.
[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: A threaded, armored, metal-clad flexible gas hose includes: The hose body has threaded sleeves movably installed on the outer walls of both sides of the hose body, and the threaded sleeves have threads inside. The hose body also has removable sealing sleeves on both sides. The disassembly and assembly mechanism is located between the sealing sleeve and the hose body and is used to facilitate the disassembly and replacement of the sealing sleeve. The disassembly and assembly mechanism includes multiple fixed arc plates fixedly installed on one side of the sealing sleeve. The multiple fixed arc plates are circumferentially distributed. Multiple positioning seats are fixedly installed on the outer wall of the hose body in an arc shape. Each of the multiple positioning seats has a slot inside. A positioning plate is fixedly installed on one side of each of the multiple fixed arc plates. Each of the multiple positioning plates matches the multiple slots. Bolts are screwed between the multiple positioning plates and the multiple slots. An abutment component is provided between the sealing sleeve and the threaded sleeve.
[0006] Preferably, the abutment assembly includes an abutment seat disposed on one side of the threaded sleeve, and a plurality of storage seats arranged in a ring are fixedly installed on one side of the sealing sleeve. Each of the plurality of storage seats has an abutment block movably disposed inside, and each of the plurality of abutment blocks corresponds to the abutment seat.
[0007] Preferably, an anti-scratching component is provided between the abutting block and the abutting seat. The anti-scratching component includes two fixing grooves opened on one side of the abutting block. Rollers are rotatably installed inside the two fixing grooves, and the two rollers cooperate with the abutting seat.
[0008] Preferably, a telescopic component is provided between the storage base and the contact block. The telescopic component includes a storage groove inside the storage base, limit grooves on both sides of the storage groove, limit blocks fixedly installed on both sides of the contact block, two limit blocks matching two limit grooves, and a compression spring connecting the contact block and the storage groove.
[0009] Preferably, a sealing ring is fixedly installed on one side of the sealing sleeve, and the sealing ring cooperates with one side of the hose body.
[0010] Preferably, the outer wall of the hose body is provided with an inner covering layer, and the outer wall of the inner covering layer is provided with an outer armor layer.
[0011] Compared with the prior art, the beneficial effects achieved by this utility model are: This invention utilizes a modular assembly and disassembly mechanism. The sealing sleeve is inserted into the slot of the positioning seat on the outer wall of the hose body via a positioning plate on a fixed arc plate, and then secured with bolts. The installation is stable, and disassembly is quick and easy. Simply move the threaded sleeve away from the interface between the sealing sleeve and the hose body, unscrew the bolts, and rotate to pull out the positioning plate. This significantly simplifies the maintenance and replacement process of the sealing sleeve, saving time and manpower, improving maintenance efficiency, and ensuring a more timely and normal gas supply. The sealing ring on one side of the sealing sleeve is in close contact with the hose body. Simultaneously, the contact component between the threaded sleeve and the sealing sleeve, under the action of a compression spring, ensures that the contact block and the contact seat of the threaded sleeve are in close contact. This multi-layered sealing structure effectively prevents gas leakage, greatly improving the safety and stability of gas delivery. Furthermore, in the anti-scratching component, the roller on one side of the contact block contacts the contact seat, converting sliding friction into rolling friction, reducing wear between the contact block and the contact seat, and extending the service life of the components. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a cross-sectional view of the outer armor layer of this utility model; Figure 3 This is a cross-sectional view of the threaded sleeve of this utility model; Figure 4 This is a schematic diagram of the structure of the sealing sleeve and the hose body of this utility model when disassembled; Figure 5 This is a schematic diagram of the structure of the telescopic component of this utility model.
[0013] The components are: 1. Hose body; 2. Outer armor layer; 3. Threaded sleeve; 4. Sealing sleeve; 5. Inner covering layer; 6. Abutment seat; 7. Sealing ring; 8. Storage seat; 9. Abutment block; 10. Fixing arc plate; 11. Positioning plate; 12. Bolt; 13. Positioning seat; 14. Roller; 15. Limiting block; 16. Compression spring; 17. Limiting groove. Detailed Implementation
[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0015] refer to Figure 1 and Figure 2 A threaded, armored, metal-clad flexible gas hose, comprising: The hose body 1 has threaded sleeves 3 movably installed on the outer walls of both sides of the hose body 1. The threaded sleeves 3 have threads inside. The hose body 1 has removable sealing sleeves 4 on both sides. The outer wall of the hose body 1 has an inner covering layer 5. The outer wall of the inner covering layer 5 has an outer armor layer 2. refer to Figure 3 and Figure 4 The disassembly and assembly mechanism is located between the sealing sleeve 4 and the hose body 1 and is used to facilitate the disassembly and replacement of the sealing sleeve 4. The disassembly and assembly mechanism includes multiple fixed arc plates 10 fixedly installed on one side of the sealing sleeve 4. The multiple fixed arc plates 10 are circumferentially distributed. Multiple positioning seats 13 are fixedly installed on the outer wall of the hose body 1 in an arc shape. Each of the multiple positioning seats 13 has a slot inside. Each of the multiple fixed arc plates 10 has a positioning plate 11 fixedly installed on one side. Each of the multiple positioning plates 11 matches the multiple slots. Bolts 12 are screwed between the multiple positioning plates 11 and the multiple slots. An abutment component is provided between the sealing sleeve 4 and the threaded sleeve 3. Furthermore, such as Figure 5 As shown, the abutment assembly includes an abutment seat 6 disposed on one side of the threaded sleeve 3, and a plurality of storage seats 8 arranged in a ring are fixedly installed on one side of the sealing sleeve 4. Abutment blocks 9 are movably disposed inside the plurality of storage seats 8, and the plurality of abutment blocks 9 correspond to the abutment seat 6. Furthermore, such as Figure 5 As shown, an anti-scratching component is provided between the abutting block 9 and the abutting seat 6. The anti-scratching component includes two fixing grooves opened on one side of the abutting block 9. Rollers 14 are rotatably installed inside the two fixing grooves, and the two rollers 14 cooperate with the abutting seat 6. The distance between the storage base 8 and the fixed arc plate 10 is sufficient to bring out the positioning plate 11 when the fixed arc plate 10 rotates, and the storage base 8 also has enough space during the synchronous rotation process. All of the above are existing technologies and will not be elaborated here. For further reference Figure 5 A telescopic component is provided between the storage base 8 and the contact block 9. The telescopic component includes a storage groove inside the storage base 8. Limiting grooves 17 are provided on both sides of the storage groove. Limiting blocks 15 are fixedly installed on both sides of the contact block 9. The two limiting blocks 15 match the two limiting grooves 17. A compression spring 16 is connected between the contact block 9 and the storage groove. A sealing ring 7 is fixedly installed on one side of the sealing sleeve 4. The sealing ring 7 cooperates with one side of the hose body 1. The overall working principle of this utility model is as follows: The hose body 1 serves as the channel for gas transmission. Its outer armor layer 2 enhances structural strength, resisting external friction and compression. The inner coating layer 5 improves corrosion resistance, together ensuring stable gas transmission. The hose body 1 is fixed to external gas equipment or pipelines via threaded sleeves 3 on both sides. A sealing ring 7 on one side of the sealing sleeve 4 is in close contact with the hose body 1, forming a seal. Simultaneously, the threaded sleeve 3 gradually contacts the contact block 9 during the screwing process. The roller 14 ensures smoother screwing of the threaded sleeve 3, reducing friction between it and the contact block 9. Continuous screwing causes the contact block 9 to compress the compression spring 16 until it reaches its maximum contraction, causing the receiving seat 8 to contact the contact seat 6. Meanwhile, the threaded sleeve 3 completes the threaded fixation. When disassembly is required, the threaded sleeve 3 is rotated in the reverse direction. By compressing the elastic force of the spring 16, it is easier to rotate the threaded sleeve 3. The internal thread of the threaded sleeve 3 has a self-locking function, so it will not easily rotate back when it is fixed. The sealing ring 7 further enhances the connection sealing of the hose body 1 after the connection is completed, preventing gas leakage. The installation and removal of the sealing sleeve 4 is completed by the installation and removal mechanism. The sealing sleeve 4 is inserted into the slot of the positioning seat 13 on the outer wall of the hose body 1 through the positioning plate 11 on the fixed arc plate 10, and then fixed with bolts 12. When disassembling, unscrew the bolts 12, rotate the sealing sleeve 4 to pull the positioning plate 11 out of the slot, and the sealing sleeve 4 can be quickly removed. The new sealing sleeve 4 is installed by reversing the operation.
[0016] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A threaded, armored, metal-clad flexible gas hose, characterized in that, include: The hose body (1) has threaded sleeves (3) movably installed on the outer walls of both sides of the hose body (1). The threaded sleeves (3) have threads inside. The hose body (1) has detachable sealing sleeves (4) on both sides. The disassembly and assembly mechanism is located between the sealing sleeve (4) and the hose body (1) and is used to facilitate the disassembly and replacement of the sealing sleeve (4). The disassembly and assembly mechanism includes multiple fixed arc plates (10) fixedly installed on one side of the sealing sleeve (4). The multiple fixed arc plates (10) are circumferentially distributed. Multiple positioning seats (13) are fixedly installed on the outer wall of the hose body (1). Each of the multiple positioning seats (13) has a slot inside. Each of the multiple fixed arc plates (10) has a positioning plate (11) fixedly installed on one side. Each of the multiple positioning plates (11) matches the multiple slots. Bolts (12) are screwed between the multiple positioning plates (11) and the multiple slots. An abutment component is provided between the sealing sleeve (4) and the threaded sleeve (3).
2. The gas-use threaded armored metal-coated flexible hose according to claim 1, characterized in that: The abutment assembly includes an abutment seat (6) disposed on one side of the threaded sleeve (3), and a plurality of storage seats (8) arranged in a ring are fixedly installed on one side of the sealing sleeve (4). Abutment blocks (9) are movably disposed inside the plurality of storage seats (8), and the plurality of abutment blocks (9) correspond to the abutment seat (6).
3. A threaded armored metal-coated flexible gas hose according to claim 2, characterized in that: An anti-scratching component is provided between the abutting block (9) and the abutting seat (6). The anti-scratching component includes two fixing grooves opened on one side of the abutting block (9). Rollers (14) are rotatably installed inside the two fixing grooves, and the two rollers (14) cooperate with the abutting seat (6).
4. A threaded armored metal-coated flexible gas hose according to claim 2, characterized in that: A telescopic assembly is provided between the storage base (8) and the abutment block (9). The telescopic assembly includes a storage groove inside the storage base (8). Limiting grooves (17) are provided on both sides of the storage groove. Limiting blocks (15) are fixedly installed on both sides of the abutment block (9). The two limiting blocks (15) match the two limiting grooves (17). A compression spring (16) is connected between the abutment block (9) and the storage groove.
5. A threaded armored metal-coated flexible gas hose according to claim 1, characterized in that: A sealing ring (7) is fixedly installed on one side of the sealing sleeve (4), and the sealing ring (7) cooperates with one side of the hose body (1).
6. A threaded armored metal-coated flexible gas hose according to claim 1, characterized in that: The outer wall of the hose body (1) is provided with an inner covering layer (5), and the outer wall of the inner covering layer (5) is provided with an outer armor layer (2).